BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem
TTP OnDemand GMAT Video Course
Featured Course

Target Test Prep GMAT OnDemand

Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.

  • 715+ score guarantee — highest in the industry (99th percentile)
  • 52 chapters · 1,500+ lessons · 4,000+ practice questions
  • 400 hours of video · 1,500+ instructor-led HD smartboard lessons
  • 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
  • 24/7 live support + weekly Zoom office hours with GMAT instructors
  • TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
  • 1,200+ flashcards + AI-powered study assistant & daily calendar
  • OnDemand, LiveTeach & GMAT Bootcamp formats available
  • Also: GRE, SAT Math & Executive Assessment courses
  • MBA Admissions Consulting now available
  • 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
  • 200,000+ students served
  • 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★ 5.0 (559 reviews)
130-pt guarantee
$0 to start then $127/mo
Start Free 5-Day Trial Read 559 Reviews →

GPREP1, Pets

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Problem Solving |
Legendary Member
Posts: 829
Joined: Mon Jul 07, 2008 10:09 pmFollowed by: 3 members
Location: INDIA
Thanked: 84 times

by sudhir3127 » Mon Aug 11, 2008 8:22 pm
IMO D.
First statement is straight forward.. so A is sufficient
second statement

its says there are 20 more dogs than birds

let the total number pets be X
we know birds = X/5
dogs = x/5+20......................................1
but the question stem says dogs are 1/3 of total pets
hence its X/3.........................................2

equate 1 and 2

x/5+20 = x/3
solve it to get total numbers of pets as 150.

hence 2 is sufficient.

hence D
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 294
Joined: Tue Feb 26, 2008 9:05 pmFollowed by: 1 member
Thanked: 13 times

by amitansu » Mon Aug 11, 2008 8:23 pm
It just says dogs are 20 more than birds.

if total is x then according to q : Dogs=x/3 and Birds=x/5

so x/3=x/5+20, then x is achievable...and so on..


Amit
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 186
Joined: Sat Jan 26, 2008 10:05 pm
Thanked: 2 times

by medea66 » Tue Aug 12, 2008 5:21 pm
Thanks guys!

Not that it matters for this specific problem, but why is 20 added to the (X/5) side? It says there are 20 more dogs (which is X/3) then birds(X/5), so shouldn't 20 be added to the side w/ dogs?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 48
Joined: Fri Aug 08, 2008 4:44 am
Thanked: 4 times
GMAT Score:750

by santa_dem » Wed Aug 13, 2008 2:29 am
the side of the birds because


if I have x apples, and you have y apples, and I have 10 more apples than you do, it means that you should add 10 apples to y to get x.

or, if you substract x-y=20, x=y+20

Get it?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 186
Joined: Sat Jan 26, 2008 10:05 pm
Thanked: 2 times

by medea66 » Wed Aug 13, 2008 5:44 pm
Yes, thanks Santa_Dem!
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1